Applications for Teflon hoses

[RaymondX]

Hi all, I need to find out what fields in semiconductor engineering requires a hose of the following charateristics: Low bend radius, <3.3&quot; for .500&quot; ID>, dust free, inner hose is made of non-adhesive flourine risin and outer reinforcement of transparent soft PVC.
The manufacture of this hose told me that semiconductor businesses mainly chose such kind of hose. Can anyone give me some concrete examples of such application? TIA.

 

[Giblet]

Raymond, I guess it depends on your application, you don't state what you want to use the hose for. But as a guide, I have worked in in Semi equipment engineering for 13 years, and I've never used such hoses. If its for chemical delivery, we use PFA tubing or PTFE, depending on the chemical in use of course. Do you really need them to be reinforced?

 

[RaymondX]

Thanks for responding. To be honest, I just want to know if there is such a need in this kind of hose so I can find a proper market for it. That's why I need some engineerer's perspectives on it. If they serve no competitive edge for industrial usage, I will look elsewhere.

More info on the lines.

inner tube: Flourine Resin,<Di Fluorine Compound>, PTFE
cover: special thermoplastic elastomer
reinforcement: soft PVC
color: thorough transparency

-wider range chemical resistent and abrasion than Nylon resin.
-High Purity, food/drug handling capability.
-upto 40% lower bend radius than conventional PTFE hose with Stainless Steel Braided reinforcement.
-wide selection of I.D. sizes and fittings

By all due respect, this is not a commercial post. I need some opinion on the usefulness of such hose. I was thinking due to the high purity, anti-chemical/abrasion, and low bend radius, it may help in a more efficient design of semi-conductors since lower bend radius = lesser space required.

 

[Giblet]

Sorry Raymond, I misunderstood your original post. Yes there would be a market for this hose in semiconductor industry. It may have use in chemical delivery, for wet etch applications, or perhaps delivery of photoresist or developer chemicals, in photo-lithography applications. It has obvious advantages over regular PTFE pipe, but the cost of the product may have an effect on sales. If costs are comparable then this product may well be favoured over regular PTFE/PFA hoses.

 

[RaymondX]

Tnank you for replying, your information is precious.

 

[RaymondX]

Giblet:

I hope you had a great holiday vacation. I want to provide more detail description of the hose so you and other knowledged ones can add more opinion.

Here is the web page to the decription of the hose:

http://www.eightron.co.jp/E_SFh.html

Since it's in metric, here is quick note

1 MPa = 145.007 psi

and I use

http://www.onlineconversion.com

for quick conversion of other specs.

Thanks for reading. If this hose may help in design of a certain specific equipment you know, please acknowledge me.